Coumarine dyestuffs of the dispersion series

Details Coumarine dyestuffs of the dispersion series Coumarine dyestuffs of the dispersion series

1974-06-17

1977-01-11

Gallagher, Richard J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 37R, 260 37N, 260 40R, 260 4221, 2602564Q, 26029358, 260304R, 260307D, 2603092, C07D40500, C07D41300

Patent

active

040026191

ABSTRACT:
Dyestuffs of the formula ##STR1## wherein R, R.sub.1, and R.sub.2 represent optionally substituted alkyl groups that can be interrupted by heteroatoms, and also represent cycloalkyl, aralkyl, aryl, or heterocyclic radicals, R and R.sub.1 can also be hydrogen atoms, R.sub.1 and R.sub.2, together with the nitrogen atom, are able to form a 5-membered or 6-membered ring, R and R.sub.2 are able to combine to form a nitrogen-containing heterocycle, B is =O or =NH, and A represents a heterocycle. The new dyestuffs dye synthetic fibers, especially polyester fibers, in greenish yellow shades.

REFERENCES:
patent: 3501490 (1970-03-01), Maeder et al.
patent: 3539583 (1970-11-01), Voltz et al.

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